Cincinnati Children’s Hospital Medical Center / Cincinnati Children’s Research Foundation

Clinical Eye Research Center of Connecticut

Clinical Partners, LLC

Clinical Physiology Associates

Clinical Research Associates of Tidewater

Clinical Research Center of Nevada

Clinical Research Institute, MN

Clinical Research of South Florida

Clinical Research Partners, LLC

Clinical Research Professionals, LLC

Clinical Trial Center, Loma Linda University Health

ClinOhio Research Services, LLC

ClinSearch, LLC

Coastal Carolina Research Center

Coastal Clinical Research, Inc.

Colorado ENT & Allergy (previously Colorado Otolaryngology Associates)

Concentrics Research

Confidence Pharmaceutical Research

CROMSOURCE

Diagnostics Research Group